John Lott of the University of Maryland argues that short-term fluctuations in the crime rate are fairly idiosyncratic, and that trends should be observed over a longer period.
马里兰大学的约翰·洛特认为短期内犯罪率的浮动有一定特殊性，而想掌握犯罪趋势则应通过长期的观察。
John Lott of the University of Maryland argues that short-term fluctuations in the crime rate are fairly idiosyncratic, and that trends should be observed over a longer period.
马里兰大学的约翰·洛特认为短期内犯罪率的浮动有一定特殊性，而想掌握犯罪趋势则应通过长期的观察。
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